Refrigerator-drain trap



E N R U 0 B H K E G April 24, 1928..

REFRIGERATOR DRAIN TRAP Filed Oct. 4, 1927 IN VEN TOR.

java- Patented Apr. 24, 1928.

the outside of the re chamberw description CHARLES E. KILBOURNE, 0F WORCESTER,MASSACHUSETTS, ASSIGNOR TO HARDER REFRIGERATORCORPORATION, A CORPORATION ,OF NEW YORK."

My invention traps for domestic re REFRIG RATOR-DRAIN 'rnar. Y

Application filedOctober 4,1927. serial No. 223,939.

has

particular reference to frigerators the pr1nc1- pal function of which is to make an air-tight water seal and thus prevent warm ing into the ice ator is closed and also entering through the waste pipe.

this sort are common frigerator and are 1 place in the drain p1 the ice chamber.

One of the ad factthat it may be st metal. It is composed of three member communicating withdrain pipe, a baflie, an with the bowl member an drain pipe from is my trap easy to but it is unusually install,

rable and it provides an all ordinary conditions.

air. from 4 frigerator from enterhile the refrigerprevent odors from Traps of ly located within the re nserted at .a convenient pe communicating with vantages of my trap is the the the ice chamber.

effectiveness is not impairedlby a able departure from a Ano refrigerator.

that it cannot be incorrectly assemb will appear from amped from sheetparts,;a bowl external d a cover telescoping d connected tothe Not only manufacture, assemble and 6 strong and duefi'ective seal under In fact its sealing considerlevel' situation for the ther advantage ofthe construction afforded in my invention is the fact led. Still invention the following particular of one embodiment of my invention as illustrated in the accompanying drawings in which:

Fig. 1 is a sectional elevation of of a refrigerator with a trap invention incorporated Fig. 2 is a sectional embo therein;

trap and adjacent parts, and

Fig. 3 is a plan of the trap with the cover removed.

In Fig. 1 the trap as a whole is the reference in the drain pipe tends down alon partment C of the ice boxD' end with the nipple at its upper a portion dying my elevation through the indicated character A. It is inserted B which commonly exg the rear wall of the comand connects E of the drain outlet from the ice chamber F. From the bottom of drain pipe bottom of suitable waste dr Referring to Fig. 2, the trap is numbered 1, 2 and the cover is numbered 3.

trap is stamped the trap A le G w ain. t

the bafiie is entirely from suit ads the outlet hich extends through the the refrigerator and leads to a the bowl member of numbered As shown the able sheet metal such as copper or zinc. The side walls of the bowl member are cylindrical and near the top it is provided with a circumferential head 4 Which serves wall and also as a stop for [the cylindrical portion of the cover which is" shown as telescoping within the bowl member.

The bottom of the bowl member is provided with a central is raised above the bottom of the bowl, the wall beingthen continued into a coupling sleeve 6 which telescopes over the bottom section G. of the draintube. v

The bottom of the bowl about the raised overflow orifice constitutes a water pocket and in cross section this Water pocket is substantially semicircular, merging with the c lindrical wall stantially the plane of the overflow orifice. Thus the water pocket is made of substantial capacity and at the same sanitaryand easily cleaned.

The bafile 2 is dome shape,1being substan tially hemispherical, and has a knob 8 formed in its top to enable itlto be easily grasped with the. fingers. It is disposed centrally over the outlet orifice of the bowl and is of a size to stand in the bottom of the water pocket 7. In order to provide a vent or vents for the water, sections of the lower edge are cut away leaving a plurality of feet 9 (shown as four in number). The height of the feet is such that baffle is below the level of the outlet orifice 5 and is, therefore, immersed in the water of the water pocket. I

It is desirable that even in a. tilted position of the refrigerator, the baflleremain substantially central and be prevented fromsliding over against the walls of the outlet orifice both to strengthen the portion of the bowl on su time is altogether the lower edge of the r and thus restrict the flow of water from the baffle tends to stay in'its central position and its'bottom edge is comparatively deeply immersed in thewater. The baflie is further restrained from any tendency to slide out of its proper relative positiondue to an inclination of the drain pipe, by reason of the fact that the feet are inclined outwardly so as to bear against the wall of the water pocket where it curves upwardly from the deepest part toward the cylindrical side Walls. In the illustrated construction this outward inclination of the feet is effected by crimping each foot vertically so as to form a central outstanding rib 10, which bears well up along the outer part of the curved wall of the water pocket. These ribs also serve to strengthen the feet. The bottom faces of the ribs are beveled off, as shown, so as to conform substantially to the curvature of the wall of'the water pocket.

The cover 3 completes the device. It is generally dome shape, terminating at its hottom in a cylindrical portion which telescopes within the bowl member. Alternatively, of

course, the bead 4 in the side wall of the bowl member may be outwardly turned and the cover of the bowl may be so proportioned in diameter that the cover telescopes over the top of the bowl.

The cover has a central inlet orifice and is continued upwardly into a short neck or sleeve portion 11 which telescopes over the drain pipe B and thus couples the trap to the drain pipe. At the bottom of the neck or sleeve the diameter is slightly restricted by the formation of an inwardly turned bead 12 which serves to limit the telescopic engagement of the cover on the drain pipe.

One of the features of my trap is the fact that the inlet coupling sleeve 11 and the outlet coupling sleeve 6 are of different diameters. This makes it impossible to reverse the positions of the bowl and cover. This (user ence in size of the two coupling-sleeves may be accommodated in making the connections either by making the two drain pipe sections B and G of different diameters or by telescoping one of the coupling sleeves over its drain pipe sectionand telescoping the other coupling sleeve into its drain pipe section.

It is obvious that various modifications may be made in the construction shown in the drawings and above particularly described within the principle and scope of my over the overflow orifice and having its bottom edge discontinuous thereby providing spaced feet, the diameter of the bottom of the battle being substantially that of the deepest part of the water pocket and the feet having each a central vertical rib the bot-tom of which is shaped substantially. to the curve of the water pocket so as tobear against an upwardly curving portion of the water pocket Wall and allow the feet to rest in the bottom of the pocket. 7 V r i In witness whereof, I hereunto'subscribe my signature.

CHARLES E. KILBOURNE! 

